baber/WOPTO huggingface dataset:
Patent GB-1133489-A (GB)
Title: Masterbatch compositions
IPC: C08F2/44
Filed: 1965-12-08
Abstract: 1,133,489. Colouring polymers. CHAS. PFIZER & CO. Inc. 8 Dec., 1965 [3 Aug., 1965], No. 52166/65. Headings C3F and C3P. A polymer is dissolved in a dispersion or solution of a pigment in a dialkyl sulphoxide or an N-alkyl or N,N-dialkyl formamide or acetamide, said alkyl group containing 1 to 10 carbon atoms, and the resulting dispersion or solution is mixed with a precipitating liquid, which is miscible with the aforesaid polar solvent and is a non-solvent for the polymerpigment composition, and the polymer-pigment precipitate is recovered. After drying, the precipitate is incorporated in a colourless batch of polymer. The polymer may be, for instance, polyacrylonitrile, an acrylonitrile copolymer, e.g. a butadiene-acrylonitrile copolymer, polyvinyl chloride or a vinyl chloride copolymer, or cellulose acetate, and may be dissolved, e.g. in acetone, methanol, dimethyl formamide, dimethyl acetamide or dimethyl sulphoxide prior to being mixed with the pigment dispersion or solution in which a solubilizing agent for the pigment, e.g. an amine, a base, an acid such as HCl or H 2 SO 4 , or an organic acid may be present. In examples compositions of polyacrylonitrile and monoazo yellow or red, azonaphthol red or maroon, diazo yellow benzidine, quinacridone red, phthalocyanine green or metalized red pigments are prepared and also a cellulose acetate-monoazo yellow composition. The preparation of compositions containing a pigment and butadiene-acrylonitrile copolymer or polyvinyl chloride is also referred to.
Patent GB-1193769-A (GB)
Title: Refractory-Coated Lance
IPC: C21C5/46
Filed: 1968-11-08
Abstract: 1,193,769. Blowing lances. DRESSER INDUSTRIES Inc. 8 Nov., 1968 [8 Nov., 1967], No. 52963/68. Heading F4B. A refractory coated lance intended for use in a steel making process comprises an elongated tube 1 of metal around which is wrapped a plurality of layers 4 of chemically-bonded refractory aggregate, each layer being separated from the next by metal foil 3 which covers also the outer layer of refractory material, the foil having a melting point equal to or greater than that of aluminium. In a method of making the lance, the refractory aggregate is mixed with a chemical binder and is made into a paste by the addition of water and a small amount of clay. The paste is then spread over the foil which is then wrapped around the tube and subsequently dried. The foil material may comprise aluminium, or steel. Examples of preferred aggregates are calcined bauxite, calcined fire clay, dead-burned magnesite, olivine, kyanite, tubular alumina, zircon, chrome ore, and ground slag. The chemical binder may comprise calcium aluminate cement, sodium silicate, sodium phosphate, soluble chromate and phosphate salts, chromic acid, phosphoric acid, epsom salts, magnesium chloride, nitrecake or lignnosulphonate liquor.
Patent GB-1110720-A (GB)
Title: Improvements in or relating to amusement apparatus
IPC: G07F17/32
Filed: 1965-12-16
Abstract: 1,110,720. Amusement machines. W. H. LYONS. 10 March, 1967 [16 Dec., 1965], No. 53355/65. Heading G4V. [Also in Division H2] In an amusement machine, an inserted coin 15 serves as the armature of a linear induction motor 10 and thereby conveyed to a hopper 21. The coins are fed from the bottom of a stack in tube 22 by the armature 27 of a second induction motor 26 under the control of a prize delivery mechanism. Normally, the lowermost coin is held in position by a spring-loaded flap 25. A vibrator 24 is mounted on the hopper. When the hopper is full, additional coins are diverted to a second receptacle.
Patent GB-1200489-A (GB)
Title: Fluid flow control equipment having interchangeable standardized elements
IPC: G05D16/06
Filed: 1967-11-23
Abstract: 1,200,489. Valves. COMPAGNIE DES COMPTEURS. 23 Nov., 1967 [30 Nov., 1966], No. 53431/67. Heading F2V. A valve comprises interchangeable parts, adapted for assembly according to the function or combination of functions required. The valve comprises a body 1 with inlet and outlet connections 2, 3 and a seat 4 which is preferably replaceable and has seating surfaces on opposite sides. The body has flanges 10, 12 for mounting separate valve units each comprising a valve closure member 5 or 14 and an actuating device. This device, such as 9, can be a pressure-responsive diaphragm housed in a two-part casing, and the valve may constitute a pressure reducing regulator. Alternatively, the actuating device may comprise mechanical, pneumatic, electrical or electronic means, and may be adapted for remote control. The valve 13, 14 may be a safety cut-off valve. One of the valves may be omitted, the corresponding flange 10 or 12 being blanked off. The closure 5 is accessible for cleaning on removal of the seat 4.
Patent GB-1445201-A (GB)
Title: Colour printing
IPC: D06P5/28
Filed: 1973-11-17
Abstract: 1445201 Colour printing BRITISH INDUSTRIAL PLASTICS Ltd 7 Feb 1975 [17 Nov 1973] 53511/73 Heading D1B Substrates e.g. textiles, wood, asbestos and resinated felts are treated before or after transfer colour printing with an alkylated melamine formaldehyde resin comprising units of the general formula: wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP>, R<SP>5</SP> and R<SP>6</SP> are H or -CH 2 OR where R is H, methyl, ethyl or propyl, there being 0-2 H atoms and 4-6 -CH 2 OR groups per unit, at least 1.5 of the R groups being other than H. In preferred embodiments, the resin treated substrate is dried and then printed with simultaneous curing of the resin or the resin is damp or wet cured, washed, dried and then printed. In Examples 2 and 3 a cotton-polyester 50/50 mixture and cotton are pretreated with the resin, dried and then transfer printed.
Patent GB-1352208-A (GB)
Title: Stiffened cutting blade with replaceable edge member
IPC: B26F1/38
Filed: 1971-11-19
Abstract: 1352208 Cutting apparatus GERBER GARMENT TECHNOLOGY Inc 19 Nov 1971 [23 Sept 1971] 53824/71 Heading B4B A cutting blade 16 for use in a cutting machine employing a reciprocable cutting blade comprises a cutting edge member 26 and a stiffening rib 28 having side cheeks 42 engaging the sides of the edge member, means for releasably fixing the rib to the edge member, the material of the edge member being less stiff and more sharpenable than the material of the rib. The cutting edge member 26, which may be made of steel, is provided with a recess 40 having shoulders 46, 48 against which the ends of the rib engage; the rib which may be of tungsten carbide is bonded to the cutting edge member by e.g.: silver solder. In the modification shown in Figs. 11 and 13, the cutting edge member is formed with a recess 66 having dove-tail shaped end faces 72, 74 for engagement with corresponding end surfaces formed on the rib. In order to secure the rib in position in the recess the cutting edge member is deflected so as to allow the dove-tail formations to inter-engage.
Patent GB-1166859-A (GB)
Title: A Sludge Centrifuge with Intermittent Sludge Discharge
IPC: B04B1/14
Filed: 1966-12-05
Abstract: 1,166,859. Centrifugal separators. ALFALAVAL A.B. 5 Dec., 1966 [15 Dec., 1965], No. 54280/66. Heading B2P. Intermittent sludge discharge through openings 3 in a centrifuge rotor 1 is controlled by an axially movable first valve 4 actuated hydraulically, an outlet 9 for the valve-operating liquid being controlled by a second valve 11 which is permanently biassed by a spring 12 to close the outlet and which is arranged to be opened by direct electromagnetic action. The valve-operating liquid is supplied via a channel 5 and passages 6, 7 to a space 8 from which it may be discharged through a number of outlets 9 provided at their outer openings with nylon tubular peds 10 against which the valve 11 is biassed. The valve-opening electromagnetic means may be provided on the rotor and operated by stationary devices. Preferably, as shown, one (annular) or more (peripherally distributed) electromagnets 14 are mounted on the centrifuge frame 13 around the rotor shaft 2. In its fully open position, the valve 11 abuts against a step 15 solid with the shaft 2 so that a gap is provided between the rotating valve and the stationary magnet cores 16. The valve 11 and hence the valve 4 are arranged to be kept open for a predetermined period by means of a timer controlling the energisation of the electromagnets. In one embodiment, Fig. 2 (not shown) the timer may be in the form of a rotating cam disc driven by a motor, the cam being adapted to close or open a switch in the electrical circuit incorporating the windings of the electromagnets. Rotation of the cam disc may be started after a predetermined time or through an impulse from a sludge-level-sensing means. In another embodiment, Fig. 3 (not shown), the timer is in the form of a capacitor connected in parallel with the windings of the electromagnets and arranged upon actuation of a switch to discharge through the windings during a period of time corresponding to that of sludge discharge.
Patent GB-1216216-A (GB)
Title: Apparatus for stopping and starting the rotation of a rapidly revolving machine spindle, always in a predetermined angular position
IPC: B23Q16/06
Filed: 1968-11-15
Abstract: 1,216,216. Machine tool details. GIUSEPPI MINGANTI & C. S.p.A. 15 Nov., 1968 [18 Nov., 1967], No. 54440/68. Heading B3T. [Also in Division F2] A mechanism for stopping the work spindle R of a machine tool in a predetermined position comprises an auxiliary fluid pressure operated motor M which drives the work spindle R slowly through a slip clutch 6, 7 and gears 4, 5 when a main motor is disconnected from the work spindle R until a spring pressed pawl 3 engages a recess 2 in a disc 1 fast with the spindle R to stop the latter in a predetermined position. when the workspindle R is driven by the main motor an hydraulic servo 45 pivots the pawl 3 away from the disc 1 and an hydraulic ram (18), Fig. 3 (not shown), pivots a bracket 20 carrying the auxiliary motor M and gear 5 about a shaft 12 to move the gear 5 out of mesh with the gear 4. On disconnecting the main motor from the workspindle R the servo 45 tilts the pawl 3 to a position in which it is pressed by a spring (60), Fig. 4 (not shown), against the periphery of the disc 1. Simultaneously an hydraulic ram (19) tilts the bracket 20 to engage the gears 4, 5. Thereafter pressure liquid supplied to the motor M drives the spindle R until it is stopped in the predetermined position by the pawl 3 whereupon a microswitch (68) stops the motor M. The clutch 6, 7 slips the motor M continues rotating after the spindle is stopped. The motor M comprises two pistons 8, 9 having rack teeth meshing an output pinion 10 and the rack-pistons are moved in opposite directions by pressure liquid to drive the pinion 10. Movement of the pistons 8, 9 through their full stroke causes just over one revolution of the workspindle R.
Patent GB-1279262-A (GB)
Title: Improvements in or relating to current-converter arrangements
Inventor: ETTER PETER
IPC: H02M1/088
Filed: 1969-11-06
Abstract: 1279262 Static converters BROWN BOVERI & CO Ltd 6 Nov 1969 [8 Nov 1968] 54459/69 Heading H2F In a converter including a series string of controlled rectifiers 1-4 (Fig. 1), e.g. thyristors which are normally fired by pulses from transformers 5-8, there is provided a circuit arrangement including opposed avalanche diodes 13-16 and reactive impedances 17-20 which apply additional firing pulses to the gate of a respective rectifier should it fail to fire normally. If one or more thyristors fail to fire there arises across each of them a voltage which exceeds the avalanche breakdown voltage of the diodes. The current thus initiated produces a rapidly increasing voltage drop across the series impedance (low ohm resistor and a capacitor in parallel) which is passed via a respective coupling diode 21, 22, 23 or 24 to form an additional firing pulse at the control electrode of the respective thyristor. The unfired thyristors will thus be fired substantially simultaneously. In an alternative embodiment, Fig. 2 (not shown), each pulse forming impedance is an inductor while in Fig. 3 (not shown) each is a secondary of a transformer the primary of which is coupled to the series circuit of avalanche diode pairs. In a further embodiment, Fig. 4, if, for example, thyristors 1 and 2 do not fire the volt drop across impedance 17 due to current flowing via thyristors 4, 3 impedance 19, diode pairs 14, 13 and impedance 17, is applied via a coupling diode 21 to fire Th 1. Thus the impedance 18 connected to Th 2 is brought into the current carrying circuit and a voltage thereacross is applied via diode 22 to fire Th 2. The thyristors which have not fired normally are fired sequentially. The avalanche diodes also serve to distribute the total voltage across the series rectifiers. Primary firing may be employed for some only of the thyristors, the remainder being fired by the pulse producing impedances. A Zener diode may be connected between each coupling diode and thyristor gate to produce a voltage threshold which must be exceeded before a firing pulse is applied.
Patent GB-1455676-A (GB)
Title: Hydroxyether p'lycarboxylic acids salts and esters
IPC: C07C51/00
Filed: 1974-12-18
Abstract: 1455676 Hydroxy ether carboxylate acids, esters and salts MONSANTO CO 18 Dec 1974 [19 Dec 1973] 54706/74 Heading C2C [Also in Division C5] Hydroxy ether carboxylic acids, esters and salts of formula where X is hydrogen, alkali metal, ammonium, alkyl ammonium or alkanolammonium wherein the or each alkyl or alkanol group contains 1 to 4 carbon atoms or an alkyl group (1-20 C), and A is hydrogen or methyl, in hydrated or anhydrous form, for example, trisodium 2-hydroxymethyl - 2 - carboxymethoxymalonate tetrahydrate, triethyl 2 - hydroxymethyl - 2 - (carboxymethoxy) malonate, 2-hydroxymethyl-2- (carboxymethoxy) malonic acid, triethyl 2- hydroxymethyl - 2 - (1 - carboxyethoxy) malonate, trisodium 2 - hydroxymethyl - 2 - (1- carboxyethoxy) malonate and 2-hydroxymethyl-2-(1-carboxyethoxy) malonate, are prepared by reacting a compound where R is alkyl (1-20 C) and A is hydrogen or methyl with formaldehyde in a basic medium. Examples describe the preparation of the above compounds which are useful as complexing agents for metals and as builders in detergent compositions. The starting ether carboxylate ester above is prepared by reacting a chloromalonate with the sodium salt of an α-hydroxy ester in an inert solvent.
Patent GB-1436370-A (GB)
Title: Ball-and-socket joint and process for its manufacture
IPC: B29C65/08
Filed: 1973-11-29
Abstract: 1436370 Ball and socket joints HOECHST AG 29 Nov 1973 [29 Nov 1972] 55350/73 Heading E2F A ball and socket joint, comprising a metallic ring ball member 6 and a thermoplastic annular socket formed in two parts 1 and 2, is assembled by fitting the parts 1, 2 together around the ball member and joining them by ultrasonic welding between surfaces 25 and 13 and surfaces 26 and 14. The socket parts are preferably injection moulded and comprise a female portion 1 having two offset cylindrical interior surfaces 13, 15 and a male portion 2 having three offset cylindrical exterior surfaces 23, 25, 27. The diameter of surface 23 is slightly less than that of surface 13, the diameter of surface 25 is slightly greater than that of surface 13, and the diameter of surface 27 is slightly less than that of surface 15. The over dimensioning of surface 25 provides surplus material for the welding and the under dimensioning of surface 27 allows the formation of a groove 5. An annular lubrication groove 3 is defined by surfaces 12, 22 and part of 13, and is linked to the exterior by a bore 4. The socket is preferably a polyamide or a polyacetal.
Patent GB-1271557-A (GB)
Title: Improvements in and relating to the forming of the cross-section of seamless asbestos cement pipes
IPC: B28B21/98
Filed: 1969-11-12
Abstract: 1,271,557. Moulding pipes. FULGURITWERKE SEELZE UND EICHRIEDE IN LUTHE BEI HANNOVER ADOLF OESTERHELD. 12 Nov., 1969 [13 Nov., 1968], No. 55382/69. Heading B5A. Deformable asbestos cement pipes of circular cross-section are shaped to a rectangular crosssection by inserting an expansible core comprising rails 1, 2 incorporating therebetween an expansible hose 7 so that when compressed air is fed thereinto from one end the rails are forced apart against the pipe interior and the rail 1 slides on bolts 3 fixed to the rail 2. One end of the hose is closed and has a vent. By appropriate shaping of the rails pipes of other cross-sections may be formed, i.e. pipes may be shaped from rectangular to circular form. The rails may be sub-divided to enable the dimension B to be reduced driving their introduction into the pipe.
Patent GB-1423757-A (GB)
Title: Machine for cleaning mould components
IPC: E04G19/00
Filed: 1973-11-30
Abstract: 1423757 Cleaning mould components HARSCO CORP 30 Nov 1973 [9 Jan 1973] 55582/73 Heading F2N  Relates to apparatus for cleaning an annular member 20, Fig. VIII, used in the moulding of concrete pipes, Fig. VII (not shown), and having a cylindrical portion 21 and inner and outer flanges 20a and 22. The apparatus comprises a roller 3 for supporting the member 20 and having a channel-section periphery for engaging flange 20a, rotatably-driven brushes 23, 40, 45 and 50, and a piston/cylinder combination 8 for raising the roller 3 to bring the supported member 20 into engagement with the brushes as illustrated in Fig. VIII. Rollers 54, 54a have channel-section peripheries for engaging the flange 22 and their position is adjustable by means of slots 59, 59a and bolts 57, 57a. The rollers 54, 54a limit the upward movement of the supported member 20. Roller 3 is rotatablydriven. The angular position of each brush 23, 40, 45, 50 is adjustable about a respective axis 27, 42, 47, 29 by means of threaded adjustors (33), 43, 48, 53. The axial position of each brush is also adjustable, Figs. IV and V (not shown).
Patent GB-1152938-A (GB)
Title: Improvements in or relating to Disc Brakes
IPC: F16D65/18
Filed: 1967-12-11
Abstract: 1,152,938. Disc brakes. ALFRED TEVES G.m.b.H. 11 Dec., 1967 [2 March, 1967], No. 56205/67. Heading F2E. In a disc brake, more particularly for motor vehicles, comprising a brake disc and brake pads 1, 2 which are applied thereto from two opposite sides and are each attached to a backplate 3, 4, respectively, disposed on the brake pad carriers 5, 6, the back-plates are attached to the associated pad carriers magnetically. Bar magnets 7, 8 are inserted in cavities in the brake pad carriers 5, 6 being disposed so that surfaces 11, 12 are flush with the corresponding faces of the brake pad carriers 5, 6, to which end readily deformable soft iron plates 15, 16 are inserted between the magnets and the inner faces of the cavities. The magnetic fields are concentrated by means of annular grooves 21, 22 of rectangular cross-section surrounding the magnets and having a width substantially equal to the distance between the inner edge of the groove and the outer edge of the cavity. For the screening of the magnetic field, the magnets bear rings 17, 18 of high permeability material. The peripheral forces are absorbed by an annular ring which extends into the brake pad carrier.
Patent GB-1389677-A (GB)
Title: Electrophotographic recording material
IPC: G03G5/06
Filed: 1972-12-06
Abstract: 1389677 Electro-photographic element HOECHST AG 6 Dec 1972 [8 Dec 1971]  56265/72 Heading G2C An electro-photographic element comprises a conductive support and a photo-conductive layer comprising a base layer and a top layer each containing an organic photo-conductor and a binder, at least one organic photo-conductor being common to both top and base layers, the base layer containing an activating sensitizer in an amount 1 to 20 wt per cent of the total photoconductor present in both layers. The conductive support is preferably aluminium or alumized polyester; the binder copoly styrene-maleic anhydride, polystyrene, chlorinated PVC or a polyester; the photo-conductor bis (p-diethyl aminophenyl) oxadiazole and the sensitizer Rhodamine B, Crystal Violet, Brilliant green, Diana Blue, Pigment Red 39, or trianisylpyrlium perchlorate. Other binders, photoconductors and sensitizers are specfied. The base and the top layer may be built up by laminating or sequential coating.
Patent GB-1315722-A (GB)
Title: Screen printing apparatus
IPC: B41F15/44
Filed: 1970-12-01
Abstract: 1315722 Screen printing apparatus U MASCIONO and B MASCIONI [trading as MASCIONI MABETEX b e u MASCIONI] 1 Dec 1970 [11 Dec 1969] 56956/70 Heading B6C A screen printing apparatus comprises a screen, which may be flat or cylindrical, and a squeegee 8<SP>1</SP>, either the squeegee 8<SP>1</SP> or, in the case of a cylindrical screen the screen, being mounted on a movable support 7 which can move in a channel 6 in a fixed mount against the resistance of a resilient means in the channel The resilient means may be a sponge rubber cushion 10, an inflated rubber tube or an internally-braced uninflated tube.
Patent GB-1414387-A (GB)
Title: Winch
IPC: B66D1/50
Filed: 1973-12-10
Abstract: 1414387 Constant tension winches FRANCE ARMED FORCES-MINISTER OF 10 Dec 1973 [11 Dec 1972] 57218/73 Heading B8B A constant tension winch comprises a winding drum 14 connected to a driving shaft by a first eddy-current coupling, and a cable guide pulley 51 connected to the winch frame by a second eddy-current coupling which controls the rotation of the pulley 51. The winding of the first coupling is supplied with constant current so that a constant tension is applied to the cable over a range of speed differences between the driving shaft and the drum. A cable distributing pulley 24 is carried by a nut 23 which engages a threaded shaft 8 rotated by a toothed wheel on the drum 14. A further pulley 44 is spring biased so as to urge the cable into engagement with the guide pulley 51.